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Jan 22 01 12: 31P DELTECH GEOTECHNICAL (209) 847-7744 P- 4 <br /> Sherwood <br /> 8071 NORTH LANDER AVENUE <br /> Labs PO BOX 937 <br />' CORPORA TIO N HILMAR CALIFORNIA 95324 <br /> 01/05/01 QUALITY CONTROL RESORT DHS Cert. 01400 <br />' Total Petroleum Hydrocarbons(TPH) Analyses <br /> Client- DEL-TECH Date Reaw ved. 12/29/00 <br /> 10624 OLIVE AVENUE Date started: 22/29/00 <br /> GAWDALE, CA 95361 Data Compla'to: 01/04/01 <br /> ATTN: DON LIGHT <br /> 1 Lab Report 0: H0122903 Lab sample 1i:PHO120987-PHO120999 <br /> Linearity Check <br /> BTEX Benzene 0.9994 TRH Gasoline 0.9999 <br /> Toluene 0-9995 TPH Diesel N/A <br /> Ethyl Benz 0.9992 Motor Oil N/A <br /> Xylenes 0_9991 TRPH (418.1) N/A <br /> ' balag 0.9996 <br /> Std % Repsatabilxty 1a5E Benzene Toluene Eth Benz Xylenes <br /> BTEX 94 95 95 95 99 <br /> TPH Gasolene 106 TBH Diesel N/A <br /> TRPH (419 1) N/A Motor 93.1 N/A <br /> 1Eatrix ir�.ke Recovmriaa MS <br /> MSD RPD <br /> MTBE 90 85 5 <br /> BTEX Benzene 112 97 14 <br /> woe I%U=3= 10.2 103 1 <br /> Ethyl Benz npike. insignificant rel t].ve to sample r.Qncentrat3-on <br /> Xylenes Sp-ike nSegnifi-cant_ reLateve to s mole concentration <br /> TPH Gasoline 79 74 7 <br /> TPH Diesel N/A N/A N/A <br /> 1letLad Bleak MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <2 ug/L < 3 ug/L < 3 ug/L <.3 ug/L <.3 ug/L <br /> ' TPH Gasoline <50 ug/L Diesel/MO N/A TRPH(418.1) N/A <br /> 1.ab Control @ample % [taaovery EPA Performance Acceptance Range <br /> rBTEX Benzene 100 73 1 - 124 <br /> Toluene 98 73.6 - 120 <br /> ' Ethyl Benz 98 72.5 = 118 <br /> xylenes 107 72.7 121 <br /> TPH Gasol3.ne 99 82 4 - 117 <br /> TPH Diesel N/A 76.5 - 136 <br /> ' TRPH (41$.1) N/A N/A <br /> �Cy B:L esiweg,Lab D3.&C <br /> OFFICE (209)667-5258 FAX (209)667-2581 <br />